<template>
  <el-card style="height: 80px;">
    <el-form :inline="true" class="form">
      <el-form-item label="用户昵称:">
        <el-input placeholder="请你输入搜索用户昵称" v-model="keyword" @keyup.enter="search"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" size="default" :disabled="keyword ? false : true" @click="search">搜索</el-button>
        <el-button type="primary" size="default" @click="reset">重置</el-button>
      </el-form-item>
    </el-form>
  </el-card>
  <el-card style="margin: 10px 0px;">
    <el-button type="primary" plain size="default" v-hasPermi="['user_add']" @click="addUser">添加用户</el-button>
    <el-button type="danger" plain size="default" :disabled="selectIdArr.length ? false : true"
               v-hasPermi="['user_delete']"
               @click="deleteSelectUser">批量删除
    </el-button>
    <el-button type="info" plain size="default" v-hasPermi="['user_add']" @click="handleImport">Excel导入</el-button>
    <el-button type="warning" plain size="default" v-hasPermi="['user_add']" @click="handleExport">导出Excel</el-button>
    <!-- table展示用户信息 -->
    <el-table @selection-change="selectChange" style="margin: 10px 0px;" border :data="userArr">
      <el-table-column type="selection" align="center"></el-table-column>
      <!--      <el-table-column label="#" align="center" type="index"></el-table-column>-->
      <el-table-column label="ID" align="center" prop="id"></el-table-column>
      <el-table-column label="用户名" align="center" prop="username" show-overflow-tooltip></el-table-column>
      <el-table-column label="用户昵称" align="center" prop="name" show-overflow-tooltip></el-table-column>
      <el-table-column label="用户角色" align="center" prop="roleName" show-overflow-tooltip></el-table-column>
      <el-table-column label="创建时间" align="center" prop="createTime" show-overflow-tooltip></el-table-column>
      <el-table-column label="更新时间" align="center" prop="updateTime" show-overflow-tooltip></el-table-column>
      <el-table-column label="操作" width="300px" align="center">
        <template #="{ row, $index }">
          <el-button type="primary" size="small" v-hasPermi="['user_update']" icon="User" @click="setRole(row)">
            分配角色
          </el-button>
          <el-button type="primary" size="small" v-hasPermi="['user_update']" icon="Edit" @click="updateUser(row)">
            编辑
          </el-button>
          <el-button type="primary" size="small" v-hasPermi="['user_delete']" @click="deleteUser(row)" icon="Delete">
            删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页器 -->
    <el-pagination v-model:current-page="pageNo" v-model:page-size="pageSize" :page-sizes="[5, 7, 9, 11]"
                   :background="true" layout="prev, pager, next, jumper,->,sizes,total" :total="total"
                   @current-change="getHasUser"
                   @size-change="handler"/>
  </el-card>
  <!-- 抽屉结构:完成添加新的用户账号|更新已有的账号信息 -->
  <el-drawer v-model="drawer">
    <!-- 头部标题:将来文字内容应该动态的 -->
    <template #header>
      <h4>{{ userParams.id ? '更新用户' : '添加用户' }}</h4>
    </template>
    <!-- 身体部分 -->
    <template #default>
      <el-form :model="userParams" :rules="rules" ref="formRef">
        <el-form-item label="用户名" prop="username">
          <el-input style="margin-left: 13px" placeholder="请您输入用姓名" v-model="userParams.username"></el-input>
        </el-form-item>
        <el-form-item label="用户密码" prop="password" v-if="!userParams.id">
          <el-input placeholder="请您输入用户密码" v-model="userParams.password"></el-input>
        </el-form-item>
        <el-form-item label="用户昵称" prop="name">
          <el-input placeholder="请您输入用户昵称" v-model="userParams.name"></el-input>
        </el-form-item>
      </el-form>
    </template>
    <template #footer>
      <div style="flex: auto">
        <el-button @click="cancel">取消</el-button>
        <el-button type="primary" @click="save">确定</el-button>
      </div>
    </template>
  </el-drawer>
  <!-- 抽屉结构:用户某一个已有的账号进行职位分配 -->
  <el-drawer v-model="drawer1">
    <template #header>
      <h4>分配角色(职位)</h4>
    </template>
    <template #default>
      <el-form>
        <el-form-item label="用户姓名">
          <el-input v-model="userParams.username" :disabled="true"></el-input>
        </el-form-item>
        <el-form-item label="职位列表">
          <el-checkbox @change="handleCheckAllChange" v-model="checkAll"
                       :indeterminate="isIndeterminate" style="margin-right: 30px">全选
          </el-checkbox>

          <!-- 显示职位的的复选框 -->
          <el-checkbox-group v-model="userRole" @change="handleCheckedCitiesChange">
            <el-checkbox v-for="(role, index) in allRole" :key="index" :label="role">{{
                role.roleName
              }}
            </el-checkbox>
          </el-checkbox-group>
        </el-form-item>
      </el-form>
    </template>
    <template #footer>
      <div style="flex: auto">
        <el-button @click="drawer1 = false">取消</el-button>
        <el-button type="primary" @click="confirmClick">确定</el-button>
      </div>
    </template>
  </el-drawer>

  <!-- 导入对话框 -->
  <el-dialog v-model="upload.open" :title="upload.title" width="400px">
    <el-upload
        class="upload-demo"
        ref="uploadRef"
        drag
        :action="upload.url"
        :headers="upload.headers"
        :limit="1"
        accept=".xlsx, .xls"
        :auto-upload="false"
        :disabled="upload.isUploading"
        :on-progress="handleFileUploadProgress"
        :on-success="handleFileSuccess"
    >
      <el-icon class="el-icon--upload">
        <upload-filled/>
      </el-icon>
      <div class="el-upload__text">
        将文件拖到此处，或<em>点击上传</em>
      </div>
      <template #tip>
        <div class="tip">仅允许导入xls、xlsx格式文件。</div>
      </template>
    </el-upload>

    <div class="dialog-footer">
      <el-button type="primary" @click="submitFileForm">确定</el-button>
      <el-button @click="upload.open = false">取消</el-button>
    </div>
  </el-dialog>
</template>

<script setup lang="ts">
//默认页码
import {ref, onMounted, reactive, nextTick} from "vue";
import {
  API,
  exporeData,
  reqAddOrUpdateUser,
  reqAllRole,
  reqRemoveUser,
  reqSelectUser,
  reqSetUserRole,
  reqUserInfo
} from "@/api/acl/user";
import {UserResponseData, Records, User, AllRole, AllRoleResponseData, SetRoleData} from "@/api/acl/user/type.ts";
import {ElMessage} from "element-plus";
import useLayOutSettingStore from "@/store/modules/setting.ts";
import modal from "@/utils/modal.js"
import {GET_TOKEN} from "@/utils/token.ts";
//默认页码
let pageNo = ref<number>(1);
//一页展示几条数据
let pageSize = ref<number>(5);
//用户总个数
let total = ref<number>(0);
//储存全部用户数据
let userArr = ref<Records>([]);
//定义响应式数据:收集用户输入进来的关键字
let keyword = ref<string>('');
//定义响应式数据控制抽屉的显示与隐藏
let drawer = ref<boolean>(false);
//获取form组件实例
let formRef = ref<any>();
//收集用户信息的响应式数据
let userParams = reactive<User>({
  username: '',
  name: '',
  password: ''
});
//控制分配角色抽屉显示与隐藏
let drawer1 = ref<boolean>(false);
//存储全部职位的数据
let allRole = ref<AllRole>([]);
//当前用户已有的职位
let userRole = ref<AllRole>([]);
//准备一个数组存储批量删除的用户的ID
let selectIdArr = ref<User[]>([]);
//获取模板setting仓库
let settingStore = useLayOutSettingStore();

//导入数据
let upload = ref({
  title: '导入数据',
  open: false,
  url: API.IMPORT_DATA,
  // 设置上传的请求头部
  headers: {Authorization: "Bearer " + GET_TOKEN()},
  //文件上传中
  isUploading: false,
})
//导入数据组件绑定的响应式对象
const uploadRef = ref();
//组件挂载完毕自动获取信息
onMounted(() => {
  getHasUser();
})

//获取全部已有用户信息
const getHasUser = async (pager = 1) => {
  pageNo.value = pager;
  let result: UserResponseData = await reqUserInfo(pageNo.value, pageSize.value, keyword.value);
  if (result.code == 200) {
    total.value = result.data.total;
    userArr.value = result.data.records;
  }
}

//分页器下拉菜单的自定义事件回调
const handler = () => {
  getHasUser()
}

//添加用户按钮的回调
const addUser = () => {
  //抽屉显示出来
  drawer.value = true;
  //清空数据
  Object.assign(userParams, {
    id: 0,
    username: '',
    name: '',
    password: ''
  });
  //清除上一次的错误的提示信息
  nextTick(() => {
    formRef.value.clearValidate('username');
    formRef.value.clearValidate('name');
    formRef.value.clearValidate('password');
  });
}
//更新已有的用户按钮的回调
//row:即为已有用户的账号信息
const updateUser = (row: User) => {
  //抽屉显示出来
  drawer.value = true;
  //存储收集已有的账号信息
  Object.assign(userParams, row);
  //清除上一次的错误的提示信息
  nextTick(() => {
    formRef.value.clearValidate('username');
    formRef.value.clearValidate('name');
  });
}

//保存按钮的回调
const save = async () => {
  //点击保存按钮的时候,务必需要保证表单全部复合条件在去发请求
  await formRef.value.validate()
  //保存按钮:添加新的用户|更新已有的用户账号信息
  let result: any = await reqAddOrUpdateUser(userParams);
  //添加或者更新成功
  if (result.code == 200) {
    //关闭抽屉
    drawer.value = false;
    //提示消息
    ElMessage({type: 'success', message: userParams.id ? '更新成功' : '添加成功'});
    //获取最新的全部账号的信息
    //getHasUser (userParams.id ? pageNo.value : 1);
    //浏览器自动刷新一次
    window.location.reload();
  } else {
    //关闭抽屉
    drawer.value = false;
    //提示消息
    ElMessage({type: 'error', message: userParams.id ? '更新失败' : '添加失败'});
  }
}
//取消按钮的回调
const cancel = () => {
  //关闭抽屉
  drawer.value = false;
}
//校验用户名字回调函数
const validatorUsername = (rule: any, value: any, callBack: any) => {
  //用户名字|昵称,长度至少五位
  if (value.trim().length >= 5) {
    callBack();
  } else {
    callBack(new Error('用户名字至少五位'))
  }
}
//校验用户名字回调函数
const validatorname = (rule: any, value: any, callBack: any) => {
  //用户名字|昵称,长度至少五位
  if (value.trim().length >= 2) {
    callBack();
  } else {
    callBack(new Error('用户昵称至少两位'))
  }
}
const validatorPassword = (rule: any, value: any, callBack: any) => {
  //用户名字|昵称,长度至少五位
  if (value.trim().length >= 5) {
    callBack();
  } else {
    callBack(new Error('用户密码至少五位'))
  }
}
//表单校验的规则对象
const rules = {
  //用户名字
  username: [{required: true, trigger: 'blur', validator: validatorUsername}],
  //用户昵称
  name: [{required: true, trigger: 'blur', validator: validatorname}],
  //用户的密码
  password: [{required: true, trigger: 'blur', validator: validatorPassword}],
}
//分配角色按钮的回调
const setRole = async (row: User) => {
  //存储已有的用户信息
  Object.assign(userParams, row);
  //获取全部的职位的数据与当前用户已有的职位的数据
  let result: AllRoleResponseData = await reqAllRole((userParams.id as number));
  if (result.code == 200) {
    //存储全部的职位
    allRole.value = result.data.allRolesList;
    //存储当前用户已有的职位
    userRole.value = result.data.assignRoles;
    //抽屉显示出来
    drawer1.value = true;
  }
}
//收集顶部复选框全选数据
const checkAll = ref<boolean>(false);
//控制顶部全选复选框不确定的样式
const isIndeterminate = ref<boolean>(true);

//顶部的全部复选框的change事件
const handleCheckAllChange = (val: boolean) => {
  //val:true(全选)|false(没有全选)
  userRole.value = val ? allRole.value : [];
  //不确定的样式(确定样式)
  isIndeterminate.value = false
}
//顶部全部的复选框的change事件
const handleCheckedCitiesChange = (value: string[]) => {
  //顶部复选框的勾选数据
  //代表:勾选上的项目个数与全部的职位个数相等，顶部的复选框勾选上
  //value.length === allRole.value.length返回是bool值
  checkAll.value = value.length === allRole.value.length;
  //不确定的样式
  isIndeterminate.value = value.length !== allRole.value.length
}

//确定按钮的回调(分配职位)
const confirmClick = async () => {
  //收集参数
  let data: SetRoleData = {
    userId: (userParams.id as number),
    roleIdList: userRole.value.map(item => {
      return (item.id as number)
    })
  }
  //分配用户的职位
  let result: any = await reqSetUserRole(data);
  if (result.code == 200) {
    //提示信息
    ElMessage({type: 'success', message: '分配职务成功'});
    //关闭抽屉
    drawer1.value = false;
    //获取更新完毕用户的信息,更新完毕留在当前页
    getHasUser(pageNo.value);
  } else {
    //关闭抽屉
    drawer1.value = false;
    //提示消息
    ElMessage({type: 'error', message: '分配职务失败'});
  }
}
//删除某一个用户
const deleteUser = async (row: User) => {
  modal.confirm('确认要删除"' + row.name + '"用户吗？').then(async function () {
    let result: any = await reqRemoveUser(row.id)
    if (result.code == 200) {
      ElMessage({type: 'success', message: '删除成功'});
      getHasUser(userArr.value.length > 1 ? pageNo.value : pageNo.value - 1);
    } else {
      //提示消息
      ElMessage({type: 'error', message: '删除失败'});
    }
  });
}

//table复选框勾选的时候会触发的事件
const selectChange = (value: any) => {
  selectIdArr.value = value;
}
//批量删除按钮的回调
const deleteSelectUser = async () => {
  //整理批量删除的参数
  let idsList: any = selectIdArr.value.map(item => {
    return item.id;
  });
  //批量删除的请求
  let result: any = await reqSelectUser(idsList);
  if (result.code == 200) {
    ElMessage({type: 'success', message: '删除成功'});
    getHasUser(userArr.value.length > 1 ? pageNo.value : pageNo.value - 1);
  } else {
    //提示消息
    ElMessage({type: 'error', message: '删除失败'});
  }
}
//搜索按钮的回调
const search = () => {
  //根据关键字获取相应的用户数据
  getHasUser();
  //清空关键字
  //keyword.value = '';
}
//重置按钮
const reset = () => {
  settingStore.refsh = !settingStore.refsh;
}

//导出
const handleExport = async () => {
  await exporeData().then(response => {
    console.log(response)
    // 创建一个blob对象
    const blob = new Blob([response.data], {type: response.headers['Content-Type']});
    // 创建一个a标签
    const link = document.createElement('a');
    link.href = window.URL.createObjectURL(blob);
    // 设置下载文件的文件名
    link.download = decodeURIComponent(response.headers['content-disposition'].split('filename=')[1].replace(/"/g, ''));
    // 触发点击事件下载文件
    link.click();
    ElMessage({type: 'success', message: '导出成功'});
  }).catch(() => {
    ElMessage({type: 'error', message: '导出失败'});
  })

}

//导入
const handleImport = () => {
  upload.value.open = true;
}

// 文件上传中处理
const handleFileUploadProgress = () => {
  upload.value.isUploading = true;
}
// 文件上传成功处理
const handleFileSuccess = (response: any) => {
  upload.value.open = false;
  upload.value.isUploading = false;
  uploadRef.value.clearFiles();
  if (response.code == 200) {
    ElMessage({type: 'success', message: '上传成功'});
  } else {
    ElMessage({type: 'error', message: '上传失败'});
  }
  getHasUser();
}

//上传文件
const submitFileForm = async () => {
  uploadRef.value.submit();
}
</script>

<style scoped>
.form {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tip {
  text-align: center;
  margin-top: 10px;
  font-size: small;
}

.dialog-footer {
  margin-top: 40px;
  text-align: right;
}
</style>
